I don't think Tyloo getting into the semis is THAT surprising. They have been getting stronger every tournament for the last 6 months (or even longer). It felt every tournament they got a little bit closer on making a deep run, and Sidney is where they finally do it.

"A person who does not concern himself with politics has already made the political choice he was so anxious to spare himself: he is serving the ruling party." - Max Frisch